Stepper Motor 5V
Stepper Motor 5V
Stepper Motor 5V
Stepper Motor 5V
Stepper Motor 5V
Stepper Motor 5V

Stepper Motor 5V

Motors
MOT410
Part.No: 28BYJ-48
€4.50
Out of Stock
The 28BYJ-48 is a compact 5V unipolar stepper motor with a built-in 1/64 reduction gear set, delivering 512 effective steps per revolution. Ideal for makers, students, and hobbyists experimenting with motion control in small-scale projects.

 

The 28BYJ-48 (OEM) is a compact, affordable 5V unipolar stepper motor that has become the go-to choice for makers and students taking their first steps — literally — into motion control. Thanks to its internal 1/64 reduction gear set, what appears to be just 8 steps per revolution becomes an effective 512 steps per revolution, giving you surprisingly fine positional control for its price point. Add a built-in mounting plate, a flat-keyed shaft, and a standard 5-wire connector, and you have a motor that is ready to drop into any project.

Key Features

  • Unipolar 4-Phase Design: Easier to drive than bipolar motors — only one side of each coil is energised at a time → simpler driver circuits and lower cost
  • Internal 1/64 Reduction Gearbox: Converts 8 native steps into 512 effective steps per revolution → smoother motion and greater holding torque
  • 5.625° Step Angle: Fine enough for most hobby positioning tasks → predictable, repeatable movement
  • 350 g·cm Holding Torque: Sufficient for light loads such as dials, valves, small arms → reliable position holding without continuous power drain
  • Built-in Mounting Plate with Two Holes: Screw it directly to your chassis → no extra brackets needed
  • Flat-Keyed 5 mm Shaft: Set-screw hubs and press-fit gears seat securely → no slipping under load
  • 4 × 200 Ω Phase Resistance: Limits in-rush current at 5 V to a safe level → compatible with standard motor driver modules

Pinout & Wiring

Wire ColourSymbolDescription
RedVCCCommon +5 V supply
OrangeAPhase coil A
YellowBPhase coil B
PinkCPhase coil C
BlueDPhase coil D

Wiring note: Connect the red wire to +5 V and the four coil wires to the outputs of a ULN2003-based driver module. The driver board's IN1–IN4 pins connect to four digital output pins on your microcontroller. Never drive the coils directly from a GPIO pin.

Compatibility

  • Arduino UNO / Nano / Mega: 5 V logic and 5 V power rail match perfectly — use the ULN2003 driver module and the Arduino Stepper or AccelStepper library.
  • ESP32 / Raspberry Pi (3.3 V logic): The ULN2003 driver accepts 3.3 V logic inputs, so these boards are also fully compatible — power the motor from a separate 5 V rail.

Typical Applications

  • Camera pan/tilt rigs — precise angular positioning for time-lapse or surveillance mounts
  • 3D printer extruder experiments — learn the basics of stepper control before moving to higher-torque motors
  • Robotic arm joints — lightweight segments that benefit from the built-in gearbox torque
  • Automated valve or damper control — the motor holds position without continuous power once a ULN2003 driver is used correctly
  • Educational motion-control demos — the ideal first stepper for Arduino coursework or university lab practicals

Technical Specifications

ParameterValue
Motor TypeUnipolar, 4-phase
Operating Voltage5 V DC
Step Angle5.625°
Effective Steps / Revolution512 (8 native × 1/64 gear ratio)
Gear Reduction Ratio1/64
Phase Resistance200 Ω per phase
Holding Torque350 g·cm
Motor Diameter28 mm
Shaft Diameter5 mm (flat-keyed)
Motor Height29 mm
Weight95 g
MPN28BYJ-48

FAQ

Q: How many steps per revolution does the 28BYJ-48 actually have?
A: The motor has 8 native steps per revolution, but the internal 1/64 reduction gearbox multiplies this to 512 effective steps per revolution at the output shaft — giving you 5.625° of movement per step.

Q: Do I need a separate driver module?
A: Yes. The coil current exceeds what a microcontroller GPIO can supply safely. Use a ULN2003 driver board (widely available and often sold as a kit with this motor) between your Arduino/ESP32 and the motor.

Package Contents: 1 × 28BYJ-48 Stepper Motor with 5-wire JST connector.

⚠ Note: A driver module (e.g. ULN2003) is required to operate this motor — it is not included. Do not connect the motor coils directly to microcontroller pins.
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